1. The Process of Photosynthesis

2. Explain what happens during the light- independent reactions.
Learning Objectives
Explain what happens during the light- independent reactions.
Identify the pigments involved in photosynthesis.
Click to show each learning objective.
Refresh students’ memories of what they learned in the last lesson.
Ask: Which stage of photosynthesis requires light?
Answer: Light-dependent reactions require light.
Let students know that, in this lesson, they will learn more about what specifically happens during the light-dependent and the light-independent reactions. By the end of this lesson, they will also be able to identify the factors that affect photosynthesis.

3. Review
What are the high energy molecules produced in the light–dependent reaction of photosynthesis?
ATP and NADPH

4. 

5. Light-independent reaction (Calvin cycle)
Occurs in the stroma

6. Uses the ATP and NADPH from the light-dependent stage to fix the carbon in CO2 into carbon in sugar (C6H12O6)

7. The NADP+ and the ADP and Pi go back to the light-dependent stage and the process repeats.

9. What is incorrect about the sign?
Atmospheric oxygen comes from water!

10. Plants use pigments to absorb light.
Chlorophyll is green and is the main pigment in plants.
Chlorophyll absorbs blue and red light and reflects green light
Chlorophyll b
Chlorophyll a

11. Plants also have other pigments that absorb different wavelengths of light. (ex. carotene is a yellow/orange pigment.)